Fountain-pen.



PATNNTED JULY 21, i903. J. BLAIR. l FOUNTAIN PEN.

N0 MODEL.

APPLICATION FILED DEO 30, 1902,

- 0f Q J7 5 i? F" y i d H913 i v W/TNESSES:

- INVENTO/ UNITED STATES PATENT OFFICE.

JOIJINBLAIR, OF BROOKLYN, NEW YORK.

FoUNTAlN-PEN.

SPECIFIGATIONforming part of Letters Patent No. 734,116, dated July `221, 1903.

' Application filed December 30, 1902. Serial No. 137,135. (No model.)

To aZZ whom it may concern:

Be itknown that I, JOHN BLAIR, a citizen of the United States, residing at Brooklyn'borough, in thecou'nty of Kings and State of New 5 York, have invented certain new and useful vImprovementsin'Fountain-Pens; and'Ido declare the following to be afull, clear, and'exact description of the invention, such as will enable others skilled in the art to which it apxo pertains to make and use the same, reference being had to the accompanying drawings,and v'to the letters of reference marked thereon,

which form apart ofthis specification.

My invention relates to fou ntain-pens, and

in part is adapted especially toy stylographic fipens. Itsobjects will be fully explained in the following description. Its various feadrawings, in whichy Figurelisalongitudinalfragmentaryview. partly in section; and Fig. v2, a similar view with the cap partly in section.`

-The letter A indicates the body or reservoir of a fountain-pen havingan interiorthreaded end a.

B is the main Section of the feeding attachment and is externally threaded to engage the body A. This section B is provided at its outer end with a plurality, preferably 3o three,I of narrow tapering peripheral surfaces .l b, b', and b2, which are adapted to engage a bevel o in the cap O. -These surfaces b b' b2 constitute aseries of three distinct joints, so that if t-he ink should pass through the joint 35 b c it would be stopped by the joint b c and from its threaded part forward being smaller than that of the section B these apertures open to the outer air when the pen is in use.

:-tresare .illustrated in ,the accompanyingv F is a feed-needle or needle-point adapted 5ov to enter the bore of sectionE and is provided with the Weighted end f. In writing this weight forces the point F from the ink-reservoir A down into section E to its outer end and pushes before it a quantity of ink suilicient to 55 meisten the point and serve in Writing. After using when the pen is reversed the weight draws the needleback and down into the inkreservoir, breaking the bubbles which often form in the ink and carrying out from the 6 0 point-section any sediment or other particles which may have gathered there and clearing the point of ink, also so that when the pen is carried in the pocket and becomes expanded by the heat from lthe body the ink will 65 not be forced 11p and out of the point. As a further precaution against leakage and to selcure an always moist and ready point I insert into the bottom of the cap C a small piece of sponge or equivalent absorbent d t0 7o take up when .the cap is on anyexcess of ink appearing at the writing-point, and so at once prevent annoying ink-overilow and keep the point wet for instantvwriting when the pen is used again. I retain this absorbentin posi- 75 tion by some insoluble adhesive, as shellac;

' but other means may be employed.

What I claim and desire to secure is- 1. In a fountain-pen a cap having an interior bevel, a feed-section having a plurality 8o of tapering, peripheral surfaces at its outer y end to Contact with said cap-bevel, and peripheral recesses between said tapering surfaces for the purposes specified. l

2. In a fountain-pen, acap having'an inte- 85 rior bevei, a feed-section having a plurality pf taperingsurfaces at its outer end to contact with said cap-bevel, recesses between said tapering surfaces, apoint-section, a feedneedle adapted to loosely enter the bore of 9o the point-section, and aweight on said needle as described. j

In testimonywhereof I aiix my signature in presence of two witnesses.

v JOHN BLAIR.

Witnesses:

HORACE OAMFORT, FRANCIS GIORGIO. 

